Rim-locking attachment



w. H. McGOWENT RIM LOCKING ATTACHMENT. APPLICATION FILED MAR. 5. 1921.

1,426,301). Patented Aug. 15, 1922;!

stares rar wrLLIaM 1r. ivrcsowniv, or vrnonnnns, INDIANA.

I Earn-LOOKING-.Arraon1irn1 rr.

' Application filed March 5,

T 0 all whom it magz concern Be it known that 1, WILLIAM H. 'Mo- GoWEN, a citizen'of the United States, residin at Vincennes, in the county of Knox and btate of Indiana,fhave invented certain new and useful Improvements in Rim- Locking Attachments; and I do hereby declare the following to'be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which i I I I 1 formed with flanges 7 and 8' for confining the beads of the tire'therein. I

it appertains to make and use the same. The present invention relates to improvements in rim locking attachments for auto-- mobiles and other vehicle wheels, and has for an object to provide for the attachment and detachment of demountable rims from wheels without the necessity of removing the locking means from the wheel.

Another object of the invention resides in providing a simple and inexpensive construction of lug permanently attached to the vehicle wheel, which upon rotation may be brought into operative and inoperative positions with respect to the demountable rim, and which further includes a latchfor holding the lug in either position and for allowing of its adjustability with reference to the'rim. I

With the foregoing and other objects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claims appended hereto.

In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views,

Fig. l is a view in side elevation of a wheel equipped with lugs constructed according to the present invention and showing the lugs in the locking position with the rim' held thereby;

Fig. 2 is an enlarged fragmentary sectional view of a portion of the wheel and demountable rim with one of the lugs shown in the inoperative position;

Fig. 8 is a transverse sectional View through the felly and'demountab'le rimand showing the locking device partly in ele-' ration and partly in section;

Fig. 4 is a plan view of the locking lug;

Fig. 5 is a bottom plan view of the locking attachment; and

Fig. 6 is a top plan View of the same.

Referring more particularly to the drawings, 1 designates the hub, Qthe spokes, and

4 Specification of e te a nt Patentediltugl 1 5 1922.

3;" the felly of automobile .or other vehicle wheel". As shown -more particularly in Fig- 3, the telly is of'a channel-cdristruction having the outer flange 4 thereof made of lesser height than theinner flange 5,

At 6 is represented "the demountable rim preferably made incl ned in a transverse direction so as to restat its'edges uponhthe outer, edges of the flanges 4; and 5. ,The

demountable rim 6 is in "the usual manner At suitable points the flanges Land 5' of the felly 3 are'provlded with coaxialopen ings 9 and 10'having smooth walls, the

'- openings 9 being'larger' than the openings 10 in order to receive the larger end portions of tapering bolts 11 which are journaled for rotary movement in these openings. These openings may be provided in any suitable number, five such openings with-a like numberof locking lugs being shown in Fig; '1. I

This is merely by way' of, eXa-mple as a reater or less number ofthe locking devices may beused; The tapering bolts 11 are held in place by 'nuts 12 run upon thethreaded-projecting ends 13 of the bolts, the outer extremities of the bolts being upset asindicated' at 14:.

againstthe adjacent faces' of the nuts 12. This permits the "nut 12 to'turn with the bolt 11 or in any event to preventitsbeing run off the threaded end 13 when the-bolt 11 is rotated in scribed a manner hereinafter ,de The larger end of the bolt extends beyond the flange 4 of the felly 3 audits outer extremity is formed into a nut head 15 adapted to receive a wrench or other tool employed to effect the rotation of the bolt.

Inwardly ofthe nut head 15 is provided the lookin lug 16 which is made integral with the bol and of a semicircular or segmental" form as indicated in Figs. 2 and 4, one side or a portion thereof. being removed to provide a straight edge 17 I coinciding with a chord of the circle on which the lug is struck. This straight edge 17 is adapted to come within the innermost circle of the demountable rim 6 as indicated in Fig. 2 when the bolt 11 is turned to one position so as to permit the ready removal of such demountable rim' from the wheel. -Nhen brought in front of the outer flange 7 of the demountable rim 6 and acts to confine the demountable rim on the wheel.

As shown more particularly in Figs. and 6, the'inner face of the lug 16 is inclined or camn'ied as indicated at 18 so that, as the lug LG is rotated, the face 18 will gradually cam the demountable rim inwardly, acting to wedge the same upon the relatively inclined outer edges of the flanges at and 5 of the telly 3. In the outer edge of the lug 16 are made at one side a series of inclined notches 1.9, while at substantially a diametrically opposite point is a single recess 20. Both "the notches 19 and recesses 20 are adapted to receive the free end of a resilient pawl or dog 21 having an overtu'ri'ied angled portion 2.2 secured. as by tastenings 23 to the outer flange i of the telly 3.

In use, the device, when in the operative position, is in the position shown in Fig. 1, the five lugs being turned so as to err-- tend against theouter flange of the demountable rim 6, thus confining the same in place, and in these positions of the lugs, the pawl or dog 21 lies'in one of the series of notches 19. These series of notches, in combination with the cammed inner face 15 provides for holding the lug at a variety of positions so that the demountable rim may be cammed in to a greater or less degree.

As wear occurs for instance the lug 16 may be moved to a new angular position and the dog engaged with the next subsequent notch 19. By applying a tool to the nut head 15 arotary movement of the lug may be accomplished to bring it to the position indicated in Fig. 2 whereupon the rim is free to be pulled axially from the wheel. In this position the dog 21 occupies the notch 20 for the purpose of holding the lug in this position. All of the lugs can there fore be set in this inoperative position so that their various locations around the wheel will not effect their accidentally swinging into the path of the rim. The hands are consequently left free to draw the rim outwardly and from the wheel.

While I have shown and described the invention in connection with a channel shaped rim, it is to be understood that the invention is equally applicable to the Firestone type which uses the wooden telly and wedge ring, or to other forms of fellies and wheels.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specilically described embodiment of this inven tion without departing from the spirit there 01, such changes and modifications being re stricted only by the scope of the following tate in the flanges of said telly, means for permanently holding said tapering belts in said flanges, the outer ends of the bolts proje cting beyond the outer flange of the telly and provided with nut heads thereon, lugs made integral with the bolts inwardly of the nut heads and provided with cammed inner faces For engaging the outer flange of the demountable rim, the lugs being provided with removed portions adapted to permit of the passage thereover of the demountable rim, the edge of said lugs'loeing provided with a series o't notches at one side and with re cesses at the opposite side, and a yieldable dog adapted to enter said recesses and a selective notch, substantially as described.

WILLIAM H. MoGUWEN. 

